rand_harvestq high cpu usage when /dev/urandom is used

[RW]

On Mon, 20 Aug 2018 18:43:37 +0100
RW wrote:


> > Also, I read on
> > https://lists.freebsd.org/pipermail/freebsd-current/2013-November/046683.html
> > someone saying that sysctls to turn off harvesting is documented in
> > random(6)
> > <https://www.freebsd.org/cgi/man.cgi?query=random&sektion=6&manpath=freebsd-release-ports>.
> > I had a look at that document, but wasn't clear to me how to turn it
> > off. I tried to play with the mask,
> > but nothing.  
>  
> what happens if you set the mask to zero?

I just tried that and it didn't make any difference, which is strange.